[jira] [Created] (YARN-6058) Support for listing all applications i.e /apps

["Rohith Sharma K S (JIRA)" <ji...@apache.org>]

Rohith Sharma K S created YARN-6058:
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             Summary: Support for listing all applications i.e /apps
                 Key: YARN-6058
                 URL: https://issues.apache.org/jira/browse/YARN-6058
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: timelinereader
            Reporter: Rohith Sharma K S
            Assignee: Rohith Sharma K S
            Priority: Critical


Primary use case for /apps is many execution engines runs on top of YARN example, Tez, MR. These engines will have their own UI's which list specific type of entities which are published by them Ex: DAG entities. 
But, these UI's do not aware of either userName or flowName or applicationId which are submitted by these engines.
Currently, given that user do not aware of user, flownName, and applicationId, then he can not retrieve any entities. 

By supporting /apps with filters, user can list of application with given ApplicationType. These applications can be used for retrieving engine specific entities like DAG. 




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